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2014-03-03Zeitschriftenartikel DOI: 10.18452/25094
A random laser as a dynamical network
dc.contributor.authorHöfner, M
dc.contributor.authorWünsche, H-J
dc.contributor.authorHenneberger, F
dc.date.accessioned2022-08-09T09:12:35Z
dc.date.available2022-08-09T09:12:35Z
dc.date.issued2014-03-03none
dc.date.updated2022-02-10T14:38:36Z
dc.identifier.urihttp://edoc.hu-berlin.de/18452/25775
dc.description.abstractThe mode dynamics of a random laser is investigated in experiment and theory. The laser consists of a ZnCdO/ZnO multiple quantum well with air-holes that provide the necessary feedback. Time-resolved measurements reveal multi-mode spectra with individually developing features but no variation from shot to shot. These findings are qualitatively reproduced with a model that exploits the specifics of a dilute system of weak scatterers and can be interpreted in terms of a lasing network. Introducing the phase-sensitive node coherence reveals new aspects of the self-organization of the laser field. Lasing is carried by connected links between a subset of scatterers, the fields on which are oscillating coherently in phase. In addition, perturbing feedback with possibly unfitting phases from frustrated other scatterers is suppressed by destructive superposition. We believe that our findings are representative at least for weakly scattering random lasers. A generalization to random laser with dense and strong scatterers seems to be possible when using a more complex scattering theory for this case.eng
dc.language.isoengnone
dc.publisherHumboldt-Universität zu Berlin
dc.rights(CC BY 3.0) Attribution 3.0 Unportedger
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/
dc.subjectrandom lasereng
dc.subjectdynamical networkeng
dc.subjectlasing networkeng
dc.subjectscatterer lasereng
dc.subjecttime-resolved measurementseng
dc.subject.ddc530 Physiknone
dc.titleA random laser as a dynamical networknone
dc.typearticle
dc.identifier.urnurn:nbn:de:kobv:11-110-18452/25775-7
dc.identifier.doihttp://dx.doi.org/10.18452/25094
dc.type.versionpublishedVersionnone
local.edoc.pages17none
local.edoc.type-nameZeitschriftenartikel
local.edoc.container-typeperiodical
local.edoc.container-type-nameZeitschrift
local.edoc.container-year2014none
dc.description.versionPeer Reviewednone
dc.identifier.eissn1367-2630
dcterms.bibliographicCitation.doi10.1088/1367-2630/16/3/033002none
dcterms.bibliographicCitation.journaltitleNew journal of physicsnone
dcterms.bibliographicCitation.volume16none
dcterms.bibliographicCitation.articlenumber033002none
dcterms.bibliographicCitation.originalpublishernameIOPnone
dcterms.bibliographicCitation.originalpublisherplace[London]none
bua.departmentMathematisch-Naturwissenschaftliche Fakultätnone

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